Tag Archives: North Pacific

North Pacific Marine Weather Outlook

The upper-level jet stream continues to be displaced south of 40 N latitude across the western North Pacific while an Omega Block is situated over the eastern North Pacific. Continue reading

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Strong Westerlies continue south of 40 North in Western Pacific

The upper-level Jet continues to be displaced south of 40 N latitude over the western and central North Pacific which will result in persistent gale to storm force (briefly hurricane force) westerlies between 30N and 40N latitudes Continue reading

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North Pacific Maritime Weather Outlook

The upper-level jet continues to be displaced south of 40 across the western and central North Pacific  Continue reading

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The Other Hurricane Season  

Each year there are, on average, about 6 hurricanes in the North Atlantic, 8 in the Eastern North Pacific and 17 Typhoons in the western North Pacific. Few people (outside of Mariners) realize that there is another season of hurricane winds that occurs over both the North Atlantic and the North Pacific Ocean and runs from September to May. These storms do not track through the tropics, but instead are associated with the extratropical cyclones of the mid-latitudes.
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Typhoon Chanthu threatens West Pacific Shipping

Typhoon Chanthu has been downgraded from a super typhoon, however it is still packing winds to 120 knots with gusts to 145 knots.  Chanthu is moving NNE (015) at 7 knots. Chanthu is currently located south of Taipei, Taiwan and … Continue reading

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Monster North Pacific Storm Sets Record

As 2020 transitioned into 2021, a rapidly deepening and intense hurricane-force storm over the western North Pacific has set an all-time record low central pressure of 921 mb breaking the previous record of 924 mb recorded on Nov 8th, 2014 … Continue reading

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Hurricane-Force Storm expected over Gulf of Alaska

A rapidly deepening storm low is forecast over the east-central North Pacific over the next 48 hours Continue reading

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Intense Hurricane-Force Storm developing east of Japan

A rapidly deepening storm low over the western North Pacific east of Japan is forecast to reach 944 mb with winds of 55-75 knots and seas building to 58 feet (17.7 meters) over the next 12-24 hours.

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Typhoon Forecast to impact Philippines on Christmas

Tropical Storm Phanfone over the western North Pacific east of the Philippines is tracking westward at 14 knots with max winds about 55 knots. Conditions favor additional strengthening with max winds reaching near 70 knots within the next 12 hours … Continue reading

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Use of the 500 mb Chart at Sea

The 500mb forecast chart is an excellent tool for mariners to estimate where to anticipate the heaviest sea and swell conditions as well as a guide to the expected surface storm tracks and intensities.  The closer the height contours on … Continue reading

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